They can try, but I can’t see how this is technologically feasible. The Internet is a conglomeration of millions of personal computers and servers. There would always be a way around this. Think of when Iran tried to do it and servers in America were lending space for the rebels to use.
We seem to forget: These are Liberal definitions of “Removal”.
They banned guns in several areas. Does that mean it was impossible to get a gun ? No.
They talk now about removing internet. Do they mean “completely” ? No. They only mean for the masses. Info will still flow, but in the amount of time it takes to get messages around to the correct people, the government can move quickly to declare the emergency, and occupy the streets en force.
They don’t need it to be a 100% elimination of the internet. Just a large percentage of it.